Patents by Inventor David Dai

David Dai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10461246
    Abstract: A method for manufacturing a memory device is provided. The method includes forming a stack over a first portion of a bottom electrode layer, in which the stack comprises a resistance switching element and a top electrode over the resistance switching element; forming a first spacer around the resistance switching element; forming a penetration barrier layer around the resistance switching element; and removing a second portion of the bottom electrode layer using an etch operation, in which the penetration barrier layer has higher resistance to penetration of an etchant used in the etch operation than that of the first spacer.
    Type: Grant
    Filed: September 16, 2017
    Date of Patent: October 29, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Wei Lu, Hsi-Wen Tien, Wei-Hao Liao, David Dai, Chung-Ju Lee
  • Publication number: 20190319333
    Abstract: A slot antenna in a vehicle glazing established between the surface of the vehicle portal for the glazing and the peripheral edge of an IR reflective coating that has a bus bar over the coating edge. The antenna slot is fed directly by a voltage probe and/or a conductive line located in the slot and parallel to the bus bar. Multiple voltage probes and conductive lines can support respective antennas. A second conductive line is parallel and cooperates with the first conductive line to form a coupled coplanar line that links to the antenna slot. The longitudinal location of the links and the length of the coplanar lines are adjusted to excite multiple frequency modes. Multiple antennas can be used to broaden overall bandwidth or to add additional frequency modes.
    Type: Application
    Filed: April 12, 2018
    Publication date: October 17, 2019
    Applicant: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Publication number: 20190319334
    Abstract: A window antenna wherein three embedded wires are laminated inside a glazing and a connector is attached to the joint end of the first and second wires and a signal input. The second antenna wire is longer and resonates at a lower frequency than the first antenna wire. A third antenna wire is a parasitic L-shape wire with part of the wire in close distance to the open end of the second antenna wire. The third antenna wire is electromagnetically coupled to the second antenna wire in the near field so that the antenna may support an additional resonance to provide multiband and wideband performance.
    Type: Application
    Filed: April 12, 2018
    Publication date: October 17, 2019
    Applicant: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Publication number: 20190284281
    Abstract: Formulations and dosage regimens of anti-Blood Dendritic Cell Antigen 2 (BDCA2) antibodies are provided. These formulations and dosage regimens find use in the treatment of BDCA2-associated disorders such as systematic lupus erythematosus, cutaneous lupus eiythernatosus, and discoid lupus erythematosus, and cytokine release syndrome.
    Type: Application
    Filed: April 27, 2017
    Publication date: September 19, 2019
    Applicant: Biogen MA Inc.
    Inventors: Mark R.H. Krebs, David Dai, Shantanu Sule, Dania Rabah, David Martin
  • Publication number: 20190273302
    Abstract: A vehicle glazing with a slot antenna between the vehicle portal and the peripheral edge of an IR reflective coating that includes a heating bus over the coating edge. The antenna slot may be fed directly by a voltage probe or a coupled coplanar line at a position to excite both fundamental and higher order modes for multiband antenna applications. A portion of the IR reflective coating may overlay the window frame at null positions of first higher order mode to tune the slot antenna to higher frequencies. Slot antenna resonant frequency may also be moved higher by separating the IR reflective coating into two coating panel with the lower coating panel connected to electrical ground by capacitive coupling. Multiple antennas can be fed at different locations for multiband applications and diversity antenna systems.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 5, 2019
    Applicant: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Patent number: 10313845
    Abstract: Non-limiting examples of the present disclosure describe proactive speech detection on behalf of a user and alerting the user when a specific word, name, etc. is detected. Speech detection is actively executed through a computing device, where the speech detection analyzes spoken utterances in association with a dynamic grammar file stored locally on the computing device. An alert is generated that indicates when a spoken word of the utterances matches a word stored in the dynamic grammar file. The alert may be displayed, for example, through the computing device. The alert provides indication that the spoken word is identified in the spoken utterances. In further examples, a buffered window of the spoken utterances is captured which is associated with a detection of the specific word. A live transcription of the content in the buffered window is generated and provided to a computing device of the user.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: June 4, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Anirudh Koul, Venkata Naga Vijaya Swetha Machanavajhala, Stéphane Morichère-Matte, David Dai Wei Zhang, Anass Al-Wohoush, Jan Ervin Mickel Takata Clarin, Sheng-Ting Lin, Sitthinon Jinaphant, Shery Sharonjit Sumal
  • Publication number: 20190124496
    Abstract: A computer-implemented method for processing a data packet in a communication network includes receiving, at a private Mobile Edge Computing (MEC) data center, the data packet. The private MEC data center hosts one or more virtual Evolved Packet Core (EPC) gateways, and each of the one or more virtual Evolved Packet Core (EPC) gateways corresponds to one or more respective Public Land Mobile Network (PLMN) service providers. The private MEC data center identifies a traffic routing type for the data packet. The private MEC data center transmits the data packet based on the identified traffic routing type.
    Type: Application
    Filed: October 25, 2017
    Publication date: April 25, 2019
    Inventors: Yinghua YE, Hang SHI, Yewei TANG, David DAI
  • Publication number: 20190088863
    Abstract: A method for manufacturing a memory device is provided. The method includes forming a stack over a first portion of a bottom electrode layer, in which the stack comprises a resistance switching element and a top electrode over the resistance switching element; forming a first spacer around the resistance switching element; forming a penetration barrier layer around the resistance switching element; and removing a second portion of the bottom electrode layer using an etch operation, in which the penetration barrier layer has higher resistance to penetration of an etchant used in the etch operation than that of the first spacer.
    Type: Application
    Filed: September 16, 2017
    Publication date: March 21, 2019
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Wei LU, Hsi-Wen TIEN, Wei-Hao LIAO, David DAI, Chung-Ju LEE
  • Publication number: 20180352390
    Abstract: Non-limiting examples of the present disclosure describe proactive speech detection on behalf of a user and alerting the user when a specific word, name, etc. is detected. Speech detection is actively executed through a computing device, where the speech detection analyzes spoken utterances in association with a dynamic grammar file stored locally on the computing device. An alert is generated that indicates when a spoken word of the utterances matches a word stored in the dynamic grammar file. The alert may be displayed, for example, through the computing device. The alert provides indication that the spoken word is identified in the spoken utterances. In further examples, a buffered window of the spoken utterances is captured which is associated with a detection of the specific word. A live transcription of the content in the buffered window is generated and provided to a computing device of the user.
    Type: Application
    Filed: June 6, 2017
    Publication date: December 6, 2018
    Inventors: Anirudh Koul, Venkata Naga Vijaya Swetha Machanavajhala, Stéphane Morichère-Matte, David Dai Wei Zhang, Anass Al-Wohoush, Jan Ervin Mickel Takata Clarin, Sheng-Ting Lin, Sitthinon Jinaphant, Shery Sharonjit Sumal
  • Patent number: 10062952
    Abstract: An electrically conductive coating of an automotive heatable windshield having a frequency selective surface area that facilitates the transmission of radio frequency signals. The FSS area may be a high-pass filter such that RF signals at any polarization can pass through the glazing over a wide frequency band. The FSS area is defined by a pattern in the conductive coating such that, when the conductive coating is used to heat the windshield, electrical current flows through the FSS area to mitigate hot and cold spots.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: August 28, 2018
    Assignee: Pittsburgh Glass Works, LLC
    Inventors: David Dai, Peter T. Dishart, Kaushal Mehta
  • Publication number: 20180205686
    Abstract: A system and method for controlling access to a message after communication. A sender sends an encrypted message to a recipient. The sender also sends an encryption key and the identity of the recipient to a services component. The recipient authenticates its access rights with the services component to obtain the encryption key. The key is held for a period of time for the recipient to access the encrypted message. The recipient may re-authenticate with the services component to again obtain the key to subsequently access the message. The sender may revoke or reinstate the receiver's access to the message by updating the service component.
    Type: Application
    Filed: July 5, 2016
    Publication date: July 19, 2018
    Inventors: Nandini JOLLY, Chris BATTY, Canute SERRAO, Deepu FILJI, David DAI
  • Patent number: 9837699
    Abstract: A window antenna wherein a pair of embedded wires are laminated inside a glazing and a connector is attached to the joined end of the wires and to a signal input. A first segment of the embedded antenna wire is oriented parallel to the window frame to form a coupled transmission line divider. The power divider with coupled transmission lines affords adding more than one wire to the window antenna for wideband and multiband application while also providing a feed to the antenna to form a diversity antenna system.
    Type: Grant
    Filed: August 8, 2015
    Date of Patent: December 5, 2017
    Assignee: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Publication number: 20170250456
    Abstract: An electrically conductive coating of an automotive heatable windshield having a frequency selective surface area that facilitates the transmission of radio frequency signals. The FSS area may be a high-pass filter such that RF signals at any polarization can pass through the glazing over a wide frequency band. The FSS area is defined by a pattern in the conductive coating such that, when the conductive coating is used to heat the windshield, electrical current flows through the FSS area to mitigate hot and cold spots.
    Type: Application
    Filed: May 2, 2017
    Publication date: August 31, 2017
    Applicant: Pittsburgh Glass Works, LLC
    Inventors: David Dai, Peter T. Dishart, Kaushal Mehta
  • Patent number: 9673534
    Abstract: An electrically conductive coating of an automotive heatable windshield having a frequency selective surface area that facilitates the transmission of radio frequency signals. The FSS area may be a high-pass filter such that RF signals at any polarization can pass through the glazing over a wide frequency band. The FSS area is defined by a pattern in the conductive coating such that, when the conductive coating is used to heat the windshield, electrical current flows through the FSS area to mitigate hot and cold spots.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: June 6, 2017
    Assignee: Pittsburgh Glass Works, LLC
    Inventors: David Dai, Peter T. Dishart, Kaushal Mehta
  • Patent number: 9653792
    Abstract: A window antenna wherein a silver ceramic trace is printed on an interior ply, and a connector is attached to the trace and a signal input. A length of the embedded antenna wire is oriented parallel to a coextensive length of the trace to form a coupled pass band filter. The coupled pass band filter provides a convenient feed to the antenna wire and eliminates a connection that extends from the edge of the laminate.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: May 16, 2017
    Assignee: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Publication number: 20170040662
    Abstract: A window antenna wherein a pair of embedded wires are laminated inside a glazing and a connector is attached to the joined end of the wires and to a signal input. A first segment of the embedded antenna wire is oriented parallel to the window frame to form a coupled transmission line divider. The power divider with coupled transmission lines affords adding more than one wire to the window antenna for wideband and multiband application while also providing a feed to the antenna to form a diversity antenna system.
    Type: Application
    Filed: August 8, 2015
    Publication date: February 9, 2017
    Inventor: David Dai
  • Patent number: 9564674
    Abstract: A connector for an automotive windshield antenna includes a thin trace portion that is electrically equivalent to a series inductor and a wide trace portion that is electrically equivalent to a shunt capacitor. The capacitor and the inductor form a matching LC network that is adjustable to match antenna impedance and transmission line impedance.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: February 7, 2017
    Assignee: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Patent number: 9337525
    Abstract: A vehicle slot antenna wherein an electro-conductive coating is applied to the surface of a glass ply. The peripheral edge of the conductive coating is spaced from the vehicle window edge and connected to a high conductive bus bar to define an annular slot antenna with low resistance loss and improved antenna efficiency. The slot antenna is fed by a thin conductive line located in the middle of the slot and parallel to the bus bar. The thin line along with the conductive coating and window frame form a coplanar waveguide (CPW). The CPW feed provides a convenient feed for the antenna at any point around the perimeter of the window slot and affords antenna tuning and impedance matching. The antenna design can use the characteristic impedance of the CPW line to match the impedance of the slot antenna to the impedance of a coaxial cable or other input impedance.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: May 10, 2016
    Assignee: Pittsburgh Glass Works, LLC
    Inventor: David Dai
  • Publication number: 20150229030
    Abstract: An electrically conductive coating of an automotive heatable windshield having a frequency selective surface area that facilitates the transmission of radio frequency signals. The FSS area may be a high-pass filter such that RF signals at any polarization can pass through the glazing over a wide frequency band. The FSS area is defined by a pattern in the conductive coating such that, when the conductive coating is used to heat the windshield, electrical current flows through the FSS area to mitigate hot and cold spots.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 13, 2015
    Applicant: Pittsburgh Glass Works, LLC
    Inventors: David Dai, Peter T. Dishart, Kaushal Mehta
  • Publication number: 20150222010
    Abstract: A window antenna wherein a silver ceramic trace is printed on an interior ply, and a connector is attached to the trace and a signal input. A length of the embedded antenna wire is oriented parallel to a coextensive length of the trace to form a coupled pass band filter. The coupled pass band filter provides a convenient feed to the antenna wire and eliminates a connection that extends from the edge of the laminate.
    Type: Application
    Filed: February 3, 2014
    Publication date: August 6, 2015
    Applicant: Pittsburgh Glass Works, LLC
    Inventor: David Dai